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COMMITMENTS AND CONTINGENCIES - Commitments (Details) $ in Thousands | Dec. 31, 2018 USD ($)
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Future minimum obligation using market prices under all supply agreements |
2019 | $ 462,898
Property, plant and equipment commitments |
Capital commitments |
Commitments | $ 112,298

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- Definition Minimum amount of purchase arrangement maturing in the next fiscal year following the latest fiscal year. Includes, but not limited to, recorded and unrecorded purchase obligations, long-term purchase commitments, and short-term purchase commitments. + References No definition available. + Details
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